i have a theory!!!!
i did a routine check on the brakes today and did a drop link (nightmare)
i noticed the disc , despite being greased well enough to slide off, didn't.
is it possible that what has happened is that the adjuster for the parking brake shoes is set too far that the shoes are literally sitting on the disc when the handbrake is not on?
so when the handbrake is released there is not enough pull in the springs on the shoes to pull them away from the disc. effectively allowing them to seize to the disc.
still not sure why the cars rolls though......................
if anyone could give me a bit of a low down it would be helpful
and of course merry christmas

i also have a theory,as to why gluons and W and Z bosons have a ltd range.
W and Z bosons are exhange bosons. The appear do there job and disapear again. The uncertainty pricinciple governs this. high mass short range. Gluons are confined by their nature. I will let someone else explain that one. The energy "borrowed" to create this particle must be "paid" back with a set time. Given these particles travel at neary the speed of light the following can be said.

Uncertainity principle states
ΔxΔp ≥ h/(4*pi) or

ΔEΔt ≥ h/(4*pi)

ΔEΔt = mc^2Δt ≥ h/(4*pi)

Virtual particles are travelling close to c so:

Range ≈ cΔt ≥ h/(4*pi*m*c)

Given the mass of a W boson is 80.4 Gev that works out to be 1.43E-25 kg. That gives a range of 1.2E-18 m. The same goes for the slightly more massive Z boson.

Last edited by jimmythepie; 12-22-2011 at 06:28 PM.
Reason: spelling,oops

i also have a theory,as to why gluons and W and Z bosons have a ltd range.
W and Z bosons are exhange bosons. The appear do there job and disapear again. The uncertainty pricinciple governs this. high mass short range. Gluons are confined by their nature. I will let someone else explain that one. The energy "borrowed" to create this particle must be "paid" back with a set time. Given these particles travel at neary the speed of light the following can be said.

Uncertainity principle states
ΔxΔp ≥ h/(4*pi) or

ΔEΔt ≥ h/(4*pi)

ΔEΔt = mc^2Δt ≥ h/(4*pi)

Virtual particles are travelling close to c so:

Range ≈ cΔt ≥ h/(4*pi*m*c)

Given the mass of a W boson is 80.4 Gev that works out to be 1.43E-25 kg. That gives a range of 1.2E-18 m. The same goes for the slightly more massive Z boson.

Would this be a tangent, by any chance?

Eso es todo! Please press the "REP" button if you are happy with your response/answer...

i also have a theory,as to why gluons and W and Z bosons have a ltd range.
W and Z bosons are exhange bosons. The appear do there job and disapear again. The uncertainty pricinciple governs this. high mass short range. Gluons are confined by their nature. I will let someone else explain that one. The energy "borrowed" to create this particle must be "paid" back with a set time. Given these particles travel at neary the speed of light the following can be said.

Uncertainity principle states
ΔxΔp ≥ h/(4*pi) or

ΔEΔt ≥ h/(4*pi)

ΔEΔt = mc^2Δt ≥ h/(4*pi)

Virtual particles are travelling close to c so:

Range ≈ cΔt ≥ h/(4*pi*m*c)

Given the mass of a W boson is 80.4 Gev that works out to be 1.43E-25 kg. That gives a range of 1.2E-18 m. The same goes for the slightly more massive Z boson.